Tom Tromey fb771b9dad Implement __VA_OPT__ ... This implements __VA_OPT__, a new preprocessor feature added in C++2A. The paper can be found here: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0306r4.html gcc/ChangeLog * doc/cpp.texi (Variadic Macros): Document __VA_OPT__. gcc/testsuite/ChangeLog * c-c++-common/cpp/va-opt-pedantic.c: New file. * c-c++-common/cpp/va-opt.c: New file. * c-c++-common/cpp/va-opt-error.c: New file. libcpp/ChangeLog * pch.c (cpp_read_state): Set n__VA_OPT__. * macro.c (vaopt_state): New class. (_cpp_arguments_ok): Check va_opt flag. (replace_args, create_iso_definition): Use vaopt_state. * lex.c (lex_identifier_intern): Possibly issue errors for __VA_OPT__. (lex_identifier): Likewise. (maybe_va_opt_error): New function. * internal.h (struct lexer_state) <va_args_ok>: Update comment. (struct spec_nodes) <n__VA_OPT__>: New field. * init.c (struct lang_flags) <va_opt>: New field. (lang_defaults): Add entries for C++2A. Update all entries for va_opt. (cpp_set_lang): Initialize va_opt. * include/cpplib.h (struct cpp_options) <va_opt>: New field. * identifiers.c (_cpp_init_hashtable): Initialize n__VA_OPT__. From-SVN: r254707		2017-11-13 20:17:42 +00:00
..
include	Implement __VA_OPT__	2017-11-13 20:17:42 +00:00
po
aclocal.m4
ChangeLog	Implement __VA_OPT__	2017-11-13 20:17:42 +00:00
ChangeLog.jit
charset.c
config.in
configure
configure.ac
directives-only.c
directives.c	diagnostics: get rid of *_at_rich_loc in favor of overloading	2017-10-31 20:21:58 +00:00
errors.c	diagnostics: get rid of *_at_rich_loc in favor of overloading	2017-10-31 20:21:58 +00:00
expr.c
files.c
identifiers.c	Implement __VA_OPT__	2017-11-13 20:17:42 +00:00
init.c	Implement __VA_OPT__	2017-11-13 20:17:42 +00:00
internal.h	Implement __VA_OPT__	2017-11-13 20:17:42 +00:00
lex.c	Implement __VA_OPT__	2017-11-13 20:17:42 +00:00
line-map.c
location-example.txt
macro.c	Implement __VA_OPT__	2017-11-13 20:17:42 +00:00
Makefile.in
makeucnid.c
mkdeps.c
pch.c	Implement __VA_OPT__	2017-11-13 20:17:42 +00:00
symtab.c
system.h
traditional.c
ucnid.h
ucnid.tab